diff --git a/Octokit.Tests/Clients/ReleasesClientTests.cs b/Octokit.Tests/Clients/ReleasesClientTests.cs
index 46c82f2e..7f44a3f3 100644
--- a/Octokit.Tests/Clients/ReleasesClientTests.cs
+++ b/Octokit.Tests/Clients/ReleasesClientTests.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
 using System.Threading.Tasks;
 using NSubstitute;
@@ -249,7 +248,7 @@ namespace Octokit.Tests.Clients
                 await Assert.ThrowsAsync<ArgumentNullException>(() => client.GetAllAssets("owner", null, 1));
 
                 await Assert.ThrowsAsync<ArgumentNullException>(() => client.GetAllAssets(null, null, 1, null));
-                await Assert.ThrowsAsync<ArgumentNullException>(() => client.GetAllAssets(null, null, 1, Args.ApiOptions));
+                await Assert.ThrowsAsync<ArgumentNullException>(() => client.GetAllAssets(null, null, 1, ApiOptions.None));
                 await Assert.ThrowsAsync<ArgumentNullException>(() => client.GetAllAssets(null, "name", 1, null));
                 await Assert.ThrowsAsync<ArgumentNullException>(() => client.GetAllAssets("owner", null, 1, null));
 
diff --git a/Octokit.Tests/Reactive/ObservableReleasesClientTests.cs b/Octokit.Tests/Reactive/ObservableReleasesClientTests.cs
index 0214adde..4dd40fe2 100644
--- a/Octokit.Tests/Reactive/ObservableReleasesClientTests.cs
+++ b/Octokit.Tests/Reactive/ObservableReleasesClientTests.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Reactive.Linq;
 using NSubstitute;
 using Octokit.Reactive;
 using Xunit;
@@ -218,7 +217,7 @@ namespace Octokit.Tests.Reactive
                 Assert.Throws<ArgumentNullException>(() => client.GetAllAssets("owner", null, 1));
 
                 Assert.Throws<ArgumentNullException>(() => client.GetAllAssets(null, null, 1, null));
-                Assert.Throws<ArgumentNullException>(() => client.GetAllAssets(null, null, 1, Args.ApiOptions));
+                Assert.Throws<ArgumentNullException>(() => client.GetAllAssets(null, null, 1, ApiOptions.None));
                 Assert.Throws<ArgumentNullException>(() => client.GetAllAssets(null, "name", 1, null));
                 Assert.Throws<ArgumentNullException>(() => client.GetAllAssets("owner", null, 1, null));